Mxg A3 Rf Assembly (503 / 506); Mxg A3 Rf Assembly - Keysight Technologies X Series Service Manual

A3 RF Assembly
Reference
10 MHz
10 MHz
OCXO
Signal
Conditioning
x2, x5
Multiplier
Chain
dac
1 – 50 MHz
REF IN
Flexible
0
Reference
f
J5003
FPGA
80 MHz LPF
Detector
10 MHz
10 MHz OUT
÷10
J5002
10 MHz
+4 dBm +/-3 dB
Synthesizer Multiplier / Divider
First Doubler Path
1.5 – 3.0 GHz
2.4 – 3.0 GHz
X2
1.9 – 2.4 GHz
1.5 – 1.9 GHz
Divider Path
950 MHz – 1500 MHz
0.75 – 1.5 GHz
600 – 950 MHz
÷N
375 – 600 MHz
250 – 375 MHz
Function Generator / Trigger Control
TRIG 1
SWEEP OUT
Sweep
Out
J302
Interface
Trigger
Interface
TRIG 2
PULSE
J301 Pulse
EXT 1
FM
adc LF
LF OUT
Function
J9002
Generator LF
J9000
EXT 2
AM
adc dac
J9001
100 MHz
0 dBm +/-3 dB
W6 To A2 P500 J5000
100 MHz
0 50 MHz
÷2
f
1 GHz
X2
100 MHz
VCXO
∫
100 MHz 0.5 GHz
X5
Second Doubler Path
3.0 – 6.0 GHz
4.8 – 6.0 GHz
X2
3.8 – 4.8 GHz
3.0 – 3.8 GHz
1.5 – 3.0 GHz
Multiplier Atten.
0.25 – 1.5 GHz
0 – 31.75 dB
Detector
W7 To A2 P1
+0 dBm +/-6 dB
Automatic Level Control
Pre Amp Log Amp
J300
Reference
dac
Temp Comp
Temp
dac ∑
J303
Sense
Linear
Exponential
Synthesizer
FracN Loop FM
0 1 – 2 GHz
∫
f
FracN
Divider
FM
1 GHz
Offset Loop
Diplexer
Shock Line
HP
LP
V
Bias
RF Output
0.25 – 6.0 GHz
Pulse Modulator
3.0 – 6.0 GHz
0.25 – 6.0 GHz
Modulator Control
Pulse From LF
Function Generator
0.25 – 6.0 GHz
J2004 J2003
1,2 1
W8 From A2 P2
∫
∑ Unlevel Detector
∑
20, 200, 2k Hz LPF
Sum Loop
62.5 – 125 MHz
÷16
0
∫
f
Pretune
320 MHz LPF
1500 MHz BPF ÷8 62.5 MHz
or
187.5 MHz
500 MHz LPF
0
∫
f
200 MHz LPF Pretune
High Band >3.0 – 6.0 GHz
ALC Control
Low Band 0.25 – 3.0 GHz
Switched HPF
250 MHz
ALC Control
1.005 – <1.250 GHz
Het Band 5 – <250 MHz
350 MHz LPF 350 MHz LPF
1 GHz
1 GHz BPF
Op-Amp Band Atten 1
-40 dB -10 dB -5 dB
9 kHz – <5 MHz
1
Not used for N5181B
2
W14 to Rear Panel LO OUT with Option 012

MXG A3 RF Assembly

N5181B, N5182B – Option 503 & 506
FM
0.75 – 1.5 GHz
3.0 to 6.0 GHz
Sum Loop Atten.
2.76 GHz HPF
0 – 31.75 dB
3.0 to 6.0 GHz
3.0 to 6.0 GHz
2.76 GHz HPF
6.4 GHz LPF
Detector
5 MHz – 3.0 GHz
Detector
ALC Detector
and
Temperature
Control
Atten 2 Atten 3
-20 dB -40 dB -10 dB -5 dB
RF OUT
J4000
Limiter &
RPP Sense